Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.10.0.1
Document And Entity Information - shares
6 Months Ended
Jun. 30, 2018
Aug. 03, 2018
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Entity Registrant Name SALEM MEDIA GROUP, INC. /DE/  
Entity Central Index Key 0001050606  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Trading Symbol SALM  
Common Class A [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   20,627,916
Common Class B [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   5,553,696